Cultivator.



is.L. ALLEN. ULTIYATOR.

APPLIUATIOFILYED DBO. 23, `190 .Y 907,945. 1 7 Patented 1m29, 1,908.

.mi nu lll l ATTORNEY S. L. ALLEN.

CULTIVATOR.

APPLIOATION FILED Dno.2s,19o'1.

Patented Dec.29, 1908.

ATTORNEY s. L.y ALLEN. GULTIVATOR. APPLICATION -.'EILIEDl DEO. 23,1907.

Patented Dec. 29, `1908. 3 SHEETSQSHEBT-.

/fv vE/vran @flame/[1. Mlle/z WITNESSES Tram/EY co., wAsHlNcroN. n c.

smeet t. Att-EN, or Moosrsrowiv, New teaser.

CITVATR.

negoziate.

Speccaton of Letters Patent.

Patented Dee. 29, 190e.

Application ined-December 23, 1907. `Serial No. 467,229,

To all whom it may concern."

Be it lrnown that l, 'SAMUEL L. ALnnN,-a citizen of the United States, and 'a resident of Moorestown, county ci Burlington, State of New Jersey, have invented certain 'new and useful Iniprovementsin Cultivat'ors, oiwhich the following is 'a `full, clear, and exact description, reference being hadto the accompanying drawings, forming a part foi this specification.

lThe main object'oi my invention, broadly stated, is to provide an improved two-horse walking pivot'wheel cultivator, adapted for the general and thorough working o'iall cultivated crops and i'ora largevarietyo'f work. More specifically stated, the o'bject'oi my -invention is to provide in a cultivator-an improved mainframe of simple, strong and durable-construction anim-proved tool carrying `frame and niountings Vfor the tools; improved- `means for steering the cultivator; :improved means for the vertical adjustment oi the tools; improved `means for regulating the depth oi' penetration oi the tools in the soil; improved means t'or the attachment of draft animals; and other improvements yto be set `forth claims. y

In the accompanying drawings, Figure 1 is a top plan view-of a cultivator constructed in accordance with this invention; Fig.` 2 a side elevation; Fig. 3 a rear elevation of' the same; and Fig. 4 a perspective view oi a detail of the same. I

Referring to the drawings, the cultivator comprises a main frame having a central upwardly extending arch member 1, in the form of an inverted U, thelo'wer ends 2 of which are extended laterally and outwardly to iorm supports for the wheels and other parts ofthe cultivaton as will be hereinafter described. Upon the rear tace of eachoi said lateral eX- tensions is secured a bar 3, provided upon its inner end with a longitudinal slot Ll. This bar is adjustably secured'to the lateral eX- tension of the frame by means ol a bolt f5 passing through the saidrslot and into 'the said extension, and a bolt6 passing through an aperture in the bar provided therefor near its outer end and falso'into the lateral extenf sion. Theouter endv of this bar 3 is extended in the following Ad escription and upwardly to form a substantially vertical support 7, to which is bolted a vertical plate i8, 'which is extended rearwardly at its upper end 9, which is provided with an aperture and is provided 'at its lower end with'fa sleeve 10, Vforming upper 'andlower bearings ior 'the vertical portion oi thelsubstantially L-shap'ed axleV '11 carrying the wheel 12. lhe vertical portion oi vthe aide is 'flattened between lits bearings and iis provided with an upwardiy 'and inwardlyejrtending crank arm 13, which Ais rigidly secured to the flattened portion et the laxle by means 'or the ybolts 14.

A tool carrying frame 15 is pivotally supported beneath each side of the main 'frame upon a bolt 16, 'which lis supported vin the ends of a downwardly extending yoke 17, the inner and upper side 18 of which is secured bymeans of a bolt 19 to the'front face of'the said lateral extension 2 of the arch member of the main frame. The bolt 16 is threaded at its end and also adjacent 4its head, and the latter threaded portion is made of larger diameter than the shank of the bolt, the ends of theyoke being threaded accordingly fto re,- ceive'the bolt. Thisframe l5 is composed of inner and -oufter parallel bars 20 and 21 vrespectively, which are provided with suitable 4apertures to receive the pivotal bolt 16. These parallel bars are secured together by means of the U-shaped brace 22 and brace rod 23. The torwardend'of theinner bar 2() is turned outwardly substantially at right angles to itself, and overlaps the forward end of the inner bar, to which it is rigidly secured by means of 'a rivet or bolt 24, the cuter end 25ct the bar 20 being provided with holes 26 yfor the reception of a bolt 27 adjus'tably securing Va verticalclevis 28 to the rtool frame. Thev clevis 28 `is provided with vertically spaced holes 29, to receive the bolt 30 of a Vvertically adjustable clevis 31, `carrying the swingle-tree y32 for the attachment of adraft animal.

The rear portion of the frame 15 is arrangedfor Vthe attachment of tools, the inner bar 20 of the frame being turned inwardly and rearwardly from a point adjacent and `in the rear of the said 'cross brace 23, forming a short substantially oblique portion 33', and is then turned rearwardly and then outwardly, terminating in an oblique portion 34. The rear end of the outer bar 21 of the tool frame isqshorter'than the rear end of the inner bar, and -is turned'inwardly Vto meet the inner bar to which it is rigidly' secured by means of rivets 35 or other fastening devices. The inner bar L2() o'i" theframe is Aheavier than the outer bar in order to form a substantial sup,- port for the tools, and to -resist the-bending vstresses due to the traction means.` e Y Tools of various shapes may be attached to the tool carrying frame by any wellknown means, but l have preferably shown three tools, 36, 37 and 33, attached thereto. These tools are rigidly secured to flattened vertical shanks or standards 39, 40 and 4l respectively. The foremost of these tools, 36, is longitudinally in alinement with the plane of its standard, and is attached to the portion of the bar 22, between the oblique portions 33 and 34 thereof, by means of a clamp member 42 having a set screw 43. This clamp is adapted to be slid when its set screw is loosened, along the bar to which it is attached, and may be secured either to the oblique portion 33 or to the oblique portion 34 of the bar, and when in either of the latter positions the tool would extend in a direction either obliquely inwardly or obliquely outwardly of the cultivator.

The tools 37 and 33 are preferably mounted upon standards 40 and 41 oblique thereto, in order to hold the tool longitudinally in alinement with the cultivator, being secured clamps 44 and 45.

Although I have shown the tool frame fitted with cultivator teeth, yet for some purposes plows, shovels, plant guards or other forms of tools may preferably be substituted for some or all of the cultivator teeth herein shown, and I do not wish to be limited to any particular form of tool or to any particular method of attachment to the tool carrying frame.

A traction tongue 46 is secured at its rear end to the top portion of the arch member l 43 extending through the tongue, the rear side of the cle is being rigidly secured to the arch member by means of a bolt 49. The tongue is also proA 'ided with oblique braces 50 extending fromthe opposite sides of the arch member 1 inwardly and forwardly to meet the tongue, to which they are secured by means of bolts 5l. The lower portions of the braces are secured to the arch member by means of bolts 52, and the lower ends of the braces are turned forward and obliquely downward and outward, and terminate over the front sides of the yokes 17 which carry the tool frames, being secured thereto by means of bolts 53. The ends of the braces thus furnish an oblique stiffening means between the arch member and its lateral eXtensions, thus tending to stiften the whole main frame of the cultivator.

The means for steering the cultivator comprises a steering bar 54 extending transversely of the culti' Aator in the rear of the upper ortion of the arch member 1, and pi etal y secured to the under side of a bracket 55 by means of a bolt 56, the bracket 55 being rigidly fastened to the rear side of the upper portion of the arch member by means of the said bolt 49, which also secures the yoke holding the rear end ol' the tongue. The outer ends of the. steering bar 54 are slotted and are slidingly connected to the free ends of the said crank arms t3 of the axles by means of the bolts 5? which pass through the said slots, and are rigidly counected to the said crank arms.

For the purpose of attaching a handle` bar, the said steering bar 54 is provided upon its upper side with plates 53 and 5U, rigidly attached thereto by means o1" bolts tt and til.

The inner portion of the plate 53 is raised abete the plane oi its outer surface, to pass o'.'er the upper surface of the ln'aeket 55, and to permit of the swinging movement of the steering arm upon the bolt 5G, which passes through the plate 53. rl`he inner adjacent portions ofthe plates 53 and 53 are turned upwardly in parallel planes obliquo to the steering bar, to form a housing for the, inner end of the handle bar C2, which is pi oted to swing in a i'ertical plane upon the bolt (i3-t passing through the uptuined portions of the to the rear portion 34 of the bar by means of said plate, the handle bar being held rigid laterally with respect to the said plates and steering bar. rPhe outerend of the handle bar 62 is provided with a handle 64. llvith this construction in mind, it is obvious that u hen the handle bar is meV Aed laterally, the steerff provided in alinement in the outer end ol' the of the main frame 1n a cle A1s 47 ha Aing a bolt bracket 55 and in the plate 53, and a pin (.15 is provided to pass through said apertures and to hold the steering bar in a itifed position.

The vertical adjustment of the tool carrying frames is accomplished by means of notched paul bars or gravity catches (Titi, which extend between the downwardly extending side portions of the arch member l of the main frame and the brace bars 23 of the tool carrying frames. The upper ends of the pawl bars arc provided with a series of apertures and the arch member is provided with bifurcated brackets (37, provided with corresponding apertures GW, and pins 63 adapted to fit in said apertures to hold the upper' ends of the pawl bars adjustably in position. The apertures G7 in one side of the bracket are in the shape of key holes and the pins 53, one of which is shown in perspective in Fig. 4 of the drawing, are each provided with a projection preferably in the, form of an eccentric collar G3 adjacent the outer end thereof whereby the pins are locked in position. rlhe lower ends ot' the, pawl bars are preferably each proV ided v, ith one or more notches (it), adapted to lit der the brace bars 23 of the tool carrying frames.

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By this construction vthepa'wl bars are held in engagement with the brace bars by lgravity only. L I 4 Fine adjustments vertically of they tool frames fare accomplished by means of the' vadjustment of the upper-ends of the pawlbars, while Athe movement of the tool frames 'from an `operative to an inoperative position is accomplished by meansof the notches provided j V'at the lowerends of the pawl bars. lt will be seen Lthatthis arrangement allows the tongue to `adjust itself to all heights of 'tea-m or neck yoke, and at the same 'time relieves the team from weight upon Ltheir 4necks because the pawls do not holdthe toolframe's from mov-v ing upwardly. c

The adjustment of the tool frames from vone notchto an adjoining notch of the Lp'awl l. 'bar jis accomlished through the vertical movement-of t -e handle bar 62' or ofla handle -bar 7 Ok having a handle 7ljat its outer end, the inner end'vof the handle bar 70 -being'fcoir nec'ted lrigidly tothe corresponding tool frame by meansloffanoblique bracket 7-2 and an oblique bolt 72. .The handle bar 70 is preferably arranged longitudinally and oleqiuely so that the handle 71 will fbe within leasy Areachof theo eratorwho walks to .the left of the row, an the construction is such wthat 'the 'handle 71wil1swng1nwardly as ft is swung upwardly. t

The two handle bars are-connected to their :respective Atool Vframes by means of the tie rio s 78 v"and 74 respectively, so that as the handles Aare lifted the rear ends of the-tool vframes `are raised accordingly. j The ends of the 'tie rod 7 3 are Lproyidedwith eyes which pass through staples or eye bolts. The 'upper :end of the bar 74 is Vprovided 'withapertures 74 and is -adjr'istably connected -to itshandle bar 70 by Emeans of a bolt 74: ada ted to Vvfit throughsaid apertures,j and the ower endof the bar 74 is 'fastened to its vnotches.

tool frame by a bolt The bar 7 lds su-bstan Itially rigid longitudinally but slightly flexible laterally to permit of theoblique movement of the 1handle bar 7 0, as 'heretofore set forth. The lupper edges of the 'notches in the pawl` zbars curve forwardly and upwardly with respect tothe bar from theflower portions of When the lcultivateurs 'being turned at .the -headlands7 `or 1is being takenfrom field 'to field, the toolframes are raised and `held ista- `tiojnary by 'the upper not'chesg the frames fbeingI dropped freely and 'easily into .working position again, when desi-reato hold the'too'ls.

to the eXact depth wanted; or the `frames umay be left floating, that is to say7 workling theiground without engagement with the notches. IThe depth at which they float being regulated by the position of the `draft cleyis uponthe .vertical clevis situated on the draft bar.

rIf'he lateral Vadjustment of the wheels is `quickly accomplished to accommodate the cultivator to lrows spaced at various widths, -by sliding the bars 3 loutwardly or inwardly over the bolts through the slots therein, the -outer belts being removed when the bars are moved outwardly and being reinserted inthe outer ends of 'the slots when the bar is in its eXtreme outward position, the inner bolts `then being in the inner ends ofthe slots.

The lateral adjustment of the cultivating `:frames is accomplished by sliding the frames laterally upon the said Vbolts 16 yto which they are pivoted, the lframes being narrower than the clev-is'from which they depend 4to permit of this movement. An adjustable co lar or split sleeve -75 -is secured by means of the "clamp screw 76 upon each bolt 16 between the sides ofthe tool carrying frame to hold the i gangs at any desired distance one from the other.

The draft bars are so arranged that the horses walk exactly where they should walk, directly -in lfr ont of the wheels. They are also so arranged that when an uneven team is used to dra-w the cultivator7 the swingletree ofthe weaker animal may be placed `further Vfrom Vthe center of the -cultivator than that of the'stronger animal, vto equalize the draft. This does away with an evener, or a double-tree and provides advantagesover Vtheievener. It is also to be noted that the draft ofthe 'animals is transmitted directly tto the frame carrying the cultivating tools :and iis substantially lin yalinement with the tool upon each side of the cultivator.

The-depth of the working iseasily and accurately governed by the notched pawls 'whichlare readily adjusted as desired, while the draft isV regulated `quickly lfor greater or less penetration by means of the clevises which extend above and below the draft bars. By attaching the swingle-trees to the lower portions of their clevises, the tools will Vbe drawn into thelground and will work the hardest kind `of soil, while with the swingletree fin the'upper portions of the clevises the draft is suflicient for lighter soils or shallower work;

Where the character `of the soil varies greatly in the 'same field or row7 the swingletrees should be attached to the lower portions of the clevises'and the pawls should be used'to limit `the depth ofpene'tration of the tools yand thus secure a uniform depth of working. I

The yextension of the gang frame fbeyond 'fthe bolt upon "which lit swings kenables the draft bar to be placed directly in front of the j frame, and a sliding connection between said wheel and at the same time makes the use of the tool with floating gangs quite easy and adjustments for depth more satisfactory.

Although l have shown only the preferred form in which this invention may be embodied, yet it is obvious that many changes might be made in the construction herein disclosed within the scope of the appended claims, without departing from the spirit of this invention or sacrificing any of the advantages thereof.

Having thus fully described my invention, what l claim and desire to protect by Letters Patent of the United States is:

1. In a cultivator, the combination with a main frame, of a tool carrying frame pivoted thereto, and a notched bar connecting said main frame and said tool carrying frame and holding said tool carrying frame in a predetermined position, said tool carrying frame being free to move upwardly into said position.

2. In a cultivator, the combination with a main frame, of a tool carrying frame pivoted thereto, a handle bar, means connecting said frames, detachably connected to one of said frames and held in engagement therewith by gravity only and thrown into or out of engagement therewith by the movement of said handle bar.

3. ln a cultivator, the combination with a main frame, and supporting wheels of a tool carrying frame carried thereby, a movable handle for steering both of said wheels, and means actuated by the movement of said handle to move said tool carrying frame.

4. In a cultivator, the combination with a main frame of two axles pivoted thereto, supporting wheels mounted on said axles, a tool carrying frame pivoted to said main frame, a handle pivotally mounted on said main frame, means connecting said handle to said axles, and means connecting said handle to said tool supporting frame whereby the movement of said handle in one direction will steer said wheels and the movement of said handle in a transverse direction will swing said tool carrying frame.

5. In a cultivator, the combination with a main frame of an axle pivoted thereto, a supporting wheel mounted on said axle, a tool carrying frame pivoted to said main frame to swing vertically, a .handle mounted on said frame to swing laterally and upwardly, a sliding ioint actuated by the lateral movement of said handle to swing said axle, and means actuated by the upward movement of said handle to swing said tool supporting frame.

6. In a cultivator, the combination with a main frame of a substantially L-shaped axle having an upwardly extending inner end, a supporting wheel carried by said axle, a crank arm connected to the upper end of said axle, a handle pivotally mounted upon said handle and the free end of said crank arm whereby said axle is caused to swing in response to the movement of said handle.

7. ln a cultivator, the combination with a. main frame of an axle carried thereby and mounted to swing upon an axis, a crank arm rigid with said axle, a bar pivoted to said frame, a sliding connection between the free end of said crank arm and the free end of said bar, a handle pivoted to said bar upon an axis transverse to the axis of said bar, a tool carrying frame mounted to swing upon said main frame and connecting means between said frame and said handle.

8. ln a cultiva-tor, the combination with a main frame of a pair of independent axles, supporting wheels carried thereby pivoted independent tool carrying frames mounted to swing upon substantially horizontal axes upon opposite sides of said main frame, a pair of independently movable handles, sliding connections between one of said handles and said axles, means connecting the same handle to one of said tool carrying frames, and means connecting the other handle to the other tool carrying frame whereby the movement of the handles steers the cultivator and controls the vertical movement of the. tool carrying frames.

9. ln a cultivator, the combina tion with a main frame of a tool carrying frame upon each side thereof, and a draft element connected directly to the forward portions of each of said tool carrying frames and supported thereby and adjustable laterally with respect thereto.

10. ln a cultivator, the combination with a main frame of a tool carrying frame extendl ing longitudinally upon each side thereof, a draft element connected directly to thc forward portion of each of `aid tool carrying i frames and carried thereby, and means for vertically adjusting said draft elements with respect to said frames.

1l. In a cultivator, the combination with a main frame of a pair of independent tool carrying frames arranged one upon ea eh side of said main frame, and a pair of independent draft elements connected directly to the forward portion of each of said tool earrying frames respectively, and carried thereby and adjustable vertically and laterally thereon.

12. In a cultivator, the combination with a main frame of a pair of independent tool carrying frames arranged one upon each side of said main frame, a draft element directly connected to the forward portion. of each of said tool carrying frames and carried thereby, and means for vertically :tdiusting said draft elements with respect to said tool carrying I frames, said means comprising a vertical l member provided with spaced apertures.

upon substantially vertical axes, a pair of' estere i l 1.3. In a cultivato, a.main?frame-compris-A ingl an arch member having alateral extension upon each side thereof, atongue secured to the top ortion of said arcli member, brace exten ing between said tongue and the upper side portion of said arch member liquely from the side portion of said varch membery to the` lateral extension thereof to brace said extension.

14. In a cultivator, a main frame, a toolr carrying frame hinged thereto'fa notched bar pivoted to one of said frames Aand engaging a portion of the. other frame, 'a handle bar pivoted to said main frame, and a tie rod between said handle bar and said tool carrying frame. j u

15. In a cultivator, a main frame comprising an Varch member,` a lateral extension upon each side thereof, a yoke rigidly securedto the front side of each of said extensions, and a tool carrying frame pivotally carried by each yoke.

16. In a cultivator, a main frame, supporting wheels carried thereby, a tool frame pivotally carried by said mainframe, and a draft element secured directly to said tool frame and carried thereby, and. adjustable laterally with. respectv thereto.

1.7.. In a eultivatcr, a longitudinally extending swinging tool carrying frame having a rearwardly extending tool` carrying arm, and a draftelement attached to and entirely supported by the forward end of said tool frame and adjustable laterally with respect thereto forward of: the axis of. said frame.V

18. In a.. culti-vater, a mainframe comprising an arch; member, a lateral extension upon each side thereof, ay yoke secured te; the firent side of each of: said. extensions, the freeLends of said lyoke being provided with. screw threaded. holt l1oles,.the hole in one end being larger. than. the hole the other` end, a bolt having screw threaded. portions correspend: 111g. diameterV to thev threaded portions. of said yoke and a toolcarrying frame pivotally carried by said bolt. Y

19. In a cultivator, a main frame comprising an arch member, a lateral extension upon each side thereof, a; yoke securedto. the front side of each of said extensions, the free ends of said yoke` being provided with screw threaded bolt holes, the hole in one end being larger than the hole in the other end,'a bolt having screw threaded ortions correspondingin diameter to the t readed portions of said yoke, a tool carryingl frame pivotally carried by said bolt and slidable longitudinally thereof between the side of said yoke, and means for adjusting said frame upon said bolt. f

20., Ina cultivator, a mainframe comprising; an arch member,a.lateral extensionupon each side thereof, a pivoted axle. and a wheel carried. by eachextension, a` transverse steerbar pivoted centrally to the upper cen.- tral portion of said arch member, a handle bar fixed laterally with respect to said transyverse bar, and-'sliding connectionsl between vsaid transverse steering bar and the said axles.,

continuing; downwardly and extending" oby 271. In ay cultivator, a mainframe comprising, an arch member, a lateral extension upon -each side thereof, a pivoted axle and a wheel ber a handle bar fixed laterally with res ect tosaid transverse bar, longitudinally sli ing connections btween said transverse steering bar and the said axles, and means to lock v said steering bar in a fixed position.

22.V In a cultivator, the combination with amain frame, of atool carrying framepivoted thereto, a handle bar pivoted to said main frame, a gravity catch between said handle bar` and said tool frame to swing the same, a second tool carrying frame pivoted to said main frame, a handle bar rigid with said second tool carrying frame and a gravity catch between said main frame and.. said second tool frame.

V23. In a cultivator, a main frame comprising an. arch member, a lateral extension upon each side thereof, apiveted axle and awheel carried by each extension, a. transverse:- steering bar pivoted centrally to. the upper central portion of said arch member, a handle bar fixed laterally with respect to said trans.H verse bar, sliding connections between said steering bar and said. axles, a tool. carryinOr frame. pivoted to said main frame, a notche pawl. between said frames, and a tie rod between said handle bar and said tool carrying tranne,` said handle bar beingpvoted to said steeringbar to swing; vertically.

2.4....V In.. a cultivator, a. main frame, an axle pivoted. thereto, a wheel carried by said axle.. a. transverse steering bar pivotedv to said frame, a, handle bar fixed laterally with respect to. said. transverse bar, a slidin connectionI between said steering bar an `said axle, a tool. carrying frame hinged to said main frame, said handle being pivoted to swine" vertically, and. means between said handle and said tool` carrying frame for swinging .said frame by the vertical motion of said handle. f

25,. In a cultivator,y a main frame, an axle pivoted thereto, a wheel carried by said axle, a transverse steering bar pivoted to said frame, ahandle bar fixed laterally with respect to said transverse bar, a sliding connection between said steering bar and said axle, a tool. carrying frame hinged to said main frame, said handle being pivotedto swing vertically', means between said handle and saidtool cai'.- rying frame for raising said frame by the up.- ward motion: of said handle, a. second tool carrying frame hinged to said main frame, a

second handle bar rigidly secured to said second frame.

26. In a cultivator a main frame, a tool carrying frame pivoted thereto, a handle bar pivoted to said main frame, means between said handle bar and said tool frame to.swing the same, a second tool carrying frame pivoted to said main frame, and a handle bar rigid with said second tool carrying frame.

27. In a cultivator, the combination with a main frame, of a tool carrying frame pivoted thereto, a handle bar pivoted to said main frame, and means connecting said frames said means being detachably connected to one of said frames, and being held in engagement therewith by gravity only and thrown into and out of engagement therewith by the movement of said handle bar.

28. In a cultivator the combination with a main frame, of a tool carrying frame pivoted thereto and means connecting said frames to limit the downward movement of said tool carrying frame, said means being detachably connected to one of said frames and being held in engagement therewith by gravity only and being thrown out of engagement therewith by the vertical movement of said tool carrying frame.

29. In a cultivator, the combination with a main frame, of a tool carrying frame piv oted thereto, and a bar, provided with a notch, pivotally connected to one of said frames and adapted to engage the other of said frames in said notch and to be held in engagement therewith by gravity only, and to be thrown into and out of engagement with said last mentioned frame by means of the vertical movement of said tool carrying frame.

30. In a culti'vator, the combination with a main frame, of a tool carrying frame pivoted thereto, a bar pivotally connected to said main frame and provided with a notch adapted to engage a portion of said tool carrying frame and to be held in position by gravity only to limit the downward motion of said frame, the up er edge of said notch being inclined upward y and outwardly with respect to said tool carrying frame whereby said frame may be disengaged from said notch by the upward motion of said frame.

31. In a cultivator, a main frame, a tool carrying frame hinged thereto, and a notched bar or pawl pivoted to one of said frames and engaging a portion of the other frame and held in position by gravity only.

32. In a cultivator, the combination with a main frame, of a tool carrying 'frame pivoted thereto, a handle bar mounted upon said tool carrying frame, and means connecting said frames and thrown into and out of lingagement by the movement of said handle 33. In a cultivator, the combination with two relatively movable parts, of a bar provided with a notch pivotally secured to one of said parts and engaging a portion of the other of said parts in said notch, said bar be ing normally held against said portion by gravity only, and said notch being inclined upon one side whereby the movement ol. said engaged part toward said side will disengage said part -from said notch.

34. In a cultivator, the combination with two relatively movable parts, of a har provided with a notch pivotally secured to one of said parts and engaging a portion of the other of said parts insaid notch, said bar being normally hold. against said portion hy gravity only, said notch being inclined upon one side whereby the movement of said engaged portion toward said side. will disengage said portion from said mitch, the edge of the bar upon the opposite side of said notch being turned inwardly, whereby a quick motion of the said movable engaged portion will cause said portion to pass over said notch without engaging therewith, but a slow movement of the said portion over the said notch will bring the said. portion. into engagement therewith In a cultivator, the combination. with a main frame, of a tool carrying frame mounted to oscillate thereon, and a gravity catch pivoted upon an axis Yfixed wth respect to said main frame to limit the downward motion of said tool carrying frame.

36. In a cnltivator, tnc combination with a main frame, of tool carrying frame, mounted to oscillate thereon, and a gravity catch to limit the motion of said tool ea rryin g frame in a downward direction, said tool carrying frame being free to move in the opposite direction from the limit of said motion.

37. In a cultivator, the combination with a main frame, of a tool carrying frame `pivoted thereto, a bar pivoted to said main frame and having notches arranged to engage with said tool carrying frame to nold said tool arrying frame against downward movement in `redetermined positions, said tool carrying trame being freely movable upwardly on its pivot.

38. In a cultivator, the combination with a main frame, of a tool carrying frame pivoted thereto, a bar pivoted to said main frame and extending downwardly and rearwardly therefrom, and having a notch in the lower edge thereof adapted to engage a portion of said tool carrying frame.

39. In a cultivator, the combination with. a main frame, of a tool carrying frame pivoted thereto, a bar pivoted to said. main frame and extending downwardly and rearwardly therefrom having a notch in the lower edge thereof adapted to engage a portion of said tool carrying frame, and means to lift said tool carrying frame to disengagc said frame from said notch.

40. In a cultivator, the combination with CIT a main frame, of a tool carrying frame mounted to oscillate upon a fixed axis thereon and a gravity catch to limit the downward movement of the free end of said tool carrying frame, said free end being freely movable upwardly from the downward limit.

41. In a cultivator, the combination with a main frame, of a rigid'tool carrying frame mounted to oscillate with respect thereto upon a fixed axis, a draft element connected to said toolV frame and entirely supported thereby, and means to adjust said draft element vertically with respect to said frame.

42. In a cultivator, the combination with l a main frame, of a rigid tool carrying frame mounted to oscillate with respect thereto upon a fixed axis, a draft element connected to said tool frame and entirely supported thereby, and means to adjust said draft element laterally with respect to said frame.

43. In a cultivator, the combination with a main frame, of a rigid tool carryingframe ,mounted to oscillate with respect thereto upon a fixed axis, a draft element connected to said tool frame and entirely supported thereby, and means to adjust said draft element laterally and vertically with respect to said frame.

44. In a cultivator, the combination with a main frame, a supporting wheel carried thereby, a tool frame mounted upon the inner side of said wheel to oscillate u on said main frame and having a bar exten ing outwardly from the forward end thereof in front of and substantially in alinement with said s wheel for the attachment of a draft element.

45. In a cultivator, the combination with a main frame, a supporting wheel carried thereby, a tool frame mounted to oscillate upon said main frame upon the inner side of said wheel and having a bar extending outwardly from the forward end thereof and rigid therewith in front of said wheel and across the path thereof for the attachment of a draft element. 4 46. In a cultivator, the. combination With a main frame, of a supporting wheel on each side thereof, a tool carrying frame carried by said main frame within and adjacent to each of said wheels, and a laterally and outwardly extending projection upon the forward end of each of said frames for Vthe attachment of draft elements, each of said projections being lsubstantially in front of and in alinement `with one of said wheels. In witness whereof, I have hereunto set my hand this 21st day of December A. D.

SAMUEL L. ALLEN. Witnesses:

A. I. GARDNER, ALEXANDER PARK. 

